[2019] Tax seems broken.

I can't confirm without further testing but I have come to a hypothesis. To come to this I Just ran a certain amount of metal nodes that would give me ~3000 metal. The island just became 20% taxed. I now got ~1500 metal. This does not make much sense to me. Also thinking about how I was mining at ~100 wood per tree on an island not taxed, but when mining on an island with 20% tax yet again, I am seeing ~60 wood per tree. this means that tax is incorrectly being calculated still. Reminds me of that thread a while ago of the player who tested it for sure on a private server. They concluded that if you did not do 30% tax and you did a lower tax rate, you could in fact tax higher than 30%.

Quick edit: Just in case Jat looks at this, if this seems to be a problem. Would it be easier to code in the ability for a company that owns an island to set tax exemptions to allies? Or would it be easier to fix this?? Either way tax exempt allies would be a great idea. It would further allow more politics to be played with by each company.